Small In The Ear Invisible Best Sound Amplifier Adjustable Digital Hearing Aids

Description

Features:
Brand new and high quality hearing aid sound amplifier
Super mini size and light weight, not easily to be seen
Adjust volume to the minimum before wearing
Increase volume gradually to avoid sudden increase in sound
Convenient for watching movie, enjoying the drama, attending meeting, or having class, it could help you hear the sound clearly and loudly
Specification:
1. Max sound output: 110±5dB
2. Sound gain: ≥30dB
3. Total harmonic wave distortion: ≤10%
4. Frequency range: 300-4000Hz
5. Input noise: ≤40dB
6. Voltage: DC1.5V
7. Current: ≤4mA
8. Color: As pictures
Power by 2 x AG3 Button Cells
(included)
Package Included:
1 x Hearing Aids
1 x Instruction Manual
1 x Case
3 x Units of earplug of different size